General install and amp probs

[flyalot]

Hello everyone, I had a head unit, 4 speakers, 1 sub, and amp installed by a local

place in town. They selected every thing for me and I was trusting them to select the right components. I have a Chevy truck xtra cab with:

JVC KD-APD49 head unit

XTREME 4600X 4 channel 600W amp

8" Kicker sub

2 Kenwood 5x7 KFC-C6882IE Peak Power 240w

2 Kenwood 4x6 KFC-4675C Peak Power 60w

The amp is taking 2 channels with the other 4 spkrs on the other 2 channels. It sounds ok but not great. I play the drums and like a nice punch in my music and its not quite there. The gain on the sub channels are maxed crossover 3/4 the gain on the other 2 channels 3/4 crossover 1/2 way. Ive played with the crossover settings. Ive been told that I should have 1 amp for the sub and 1 4 channel amp for the other 4 spkrs. Should I get a mono sub amp and keep the 4 channel 600w amp for the 4 spkrs. Would that be to much power?

Also the RCA's seem really loose and tend to come apart enough so a spkr doesnt work.

I also get a very light hum that doesnt really change with the engine rpm.

Thanks for your help

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[RnK1026]

you can never have to much power as long as you adjust your gain properly on your amp.start with the gain VERY low and work your way up. i would definately get a sperate amp for that sub........DEFINATELY

 

[flyalot]

Thanks for the fast reply. I just came from the stereo shop, they recommended a Z-Edition 2 channel 400w amp for the sub $200 installed. What do you think?

 

[Horsemanwill 10+ year member]

i've never heard of those brands please show me

 

[RnK1026]

what brand amp is that your talkin about....kicker?? if so, id say go for it. if not, let me know what it is, but really any small amp for that 8" should be just fine. if you were runnin 2000 watts or something, there would be way more to it